[PATCH] xorg-server: fix mouse probing

[Jung-uk Kim]

As you may have noticed from other threads, xorg-server has problem 
with HAL support (default).  Please test the patch:

http://people.freebsd.org/~jkim/xorg-server.diff

You also have to patch sysutils/hal:

http://www.marcuscom.com/downloads/hal.diff

Changes:
- Do not probe /dev/psm0 as SysMouse if HAL is enabled.
- Add /dev/ums0 as SysMouse if HAL is disabled.
- Do not force sysmouse(4) mode unless device is /dev/sysmouse.  When 
moused(8) is not running, current mode level is untouched.
- Correcly check if moused is actually running.  Checking pid file is 
not enough because it may be /var/run/moused.<device>.pid when it is 
invoked by devd(8) for USB mice.
- Do not attach device if it is opened by moused.
- Correctly add device path for HAL.

Thanks,

Jung-uk Kim